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Windows Phone 7: Ruins memory cards

The Windows Phone 7 has only been out for a short time, but it is already coming under fire for some of its features. The new Microsoft OS supports memory cards but there are some baffling issues with it, and it would probably be better if there was no support.

Jason Mick of Daily Tech is reporting that AT&T has warned its customers to only use “Certified for Windows Phone 7” microSD cards. Trouble is there are currently none available. When a user inserts a memory card, the Windows Phones basically “break” them.

Permanent changes are made to the card which will stop them being used in other devices. Samsung has warned “it will no longer be readable or writable on any other devices such as computers, cameras, printers, and so on.” This means you can’t even take the card out and replace it with a higher capacity one.

On the Microsoft help and support page it mentions the SD card ‘limitations’, adding “You should not remove the SD card in your phone or add a new one because your Windows Phone 7 device might not work properly”. “Existing data on the phone will be lost, and the SD card in your phone can’t be used in other Windows Phones, PCs, or other devices.”

Have you had issues with a memory card on Windows Phone 7device?

Written by Gary Johnson

Gary has a background in engineering and passion for motorcycles, gadgets, and home cinema. In his early years, his obsession for Hi-Fi technology would see him creating the perfect setup with a good ear for sound quality. While Gary is keen to write about most topics that PR covers, his love for phones finds him reporting a lot of news about applications for iPhone, Android, and other popular operating systems

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BryonRon ChancellorRodneyNick smithjary gohns Recent comment authors
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First added older class 2 8GB card and it worked flawlessly. Got up the nerve to try a class 2 32GB SanDisk, and it too worked flawlessly. My only real irritation is that the 8GB is now useless. That tidbit of information just came out, otherwise I wouldn't have tried it.

Nick smith
Nick smith

This is not news. MS have let people know for over a year that it will require hard reset and format. Non-story, poor journalism

jary gohns
jary gohns

gary johnson's derogatory comments should be judged in the light of his stock holdings and prejudiced, slanted diatribe.


Well the advice seems clear enough to me. If you decide to ignore it then be it at your own peril. Why should MS come under fire when as far as users are concerned the SD card should be treated in the same way as the flash memory built into an iPhone i.e. non-removable.


I inserted my 2 year old SanDisk 8gb Class 4 microSD card the day I bought my Samsung Focus. As expected, hard reset required, but since that point has functioned beautifully. No decrease in performance, and double the memory. Has been in constant use for a full week, with music, videos, podcasts, and apps constantly being synced on and off the device. No issues whatsoever. If you understand what is expected/required, there don't seem to be any problems at all.

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